barnes



2 Sheets-Sheet 1v (No Model.)

W. P. BARNES GRINDSTONE FRAME.

No. 367,331. Patented July 23, 1337.

gmpher, Washmglon. 0. Q

2 Sheets-Sheet 2 (No Model.)

W. -F.- BARNES.

'GRINDSTONE FRAME.

N0. 367,331. Patented July 26, 1887.

N. PETERS Pnowuvhc m her, Washington. D. C.

UNITED STATES WVILLIAM 'F. BARNES, OF ROCKFORD,

GRlNDSTONE-FRAME.

PATENT OFFICE.

ILLINOIS, ASSIGNOR TO THE \V. F. & JOHN BARNES COMPANY, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 367,331, dated duly 26, 1887.

Application filed July 26, 1886. Serial No. 209.127. (No model.)

To all whom, it may concern:

Be it known that I, \lVILLIAM F. BARNES, a citizen of the United States, residing in the city of Rockford, in the county of Winnebago and State of Illinois, have invented a new and useful Grindstone-Frame, of which the following is a specification.

This invention relates to grindstone-frames; and it consists in the improvements hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is an isometrical representation of an apparatus embodying my invention. Fig. 2 is a lengthwise verli'cal section in which portions are complete. Fig. 3 is ahorizontal section of the frame on dotted line a,in which portions of the parts are shown in skeleton unbroken; and i Fig. 4 is an isometrical representation of a horizontal tool-rest.

The frame-support to the grindstone is com posed of apedestal portion and a cap portion. The pedestal portion of the supporting-frame consists of a base, 1, a front tubular column, 2, and a rear column support, 3, rising from the base, a work-supporting table, 4, and the lower portion of the grindstone-case 5, connecting the upper ends of the column-supports, and journal'box bearings 6, projecting from the eye of the case on opposite sidesin this instance cast in one piec'econstitute the pedestal-support of the grindstone.

A grindstone, 7, which may be any of the known varieties, is supported on a shaft, 8, to revolve within the case on thejournal-ban ings of the shaft supported in the box-bearings 6. The cap or upper removable portion, 9, of the case is formed with caps 10t0 the box-bearings, and are held in place in the usual manner, and serve to hold the'cap portion of the case in place. A pulley, 11, is fixed on the projecting end of the grindstoneshaft to receive the belt employed to impart motion to the grindstone.

A water-distributer, 12, is hinge-jointed to the forward portion of the removable cap, and its free end is made adjustable to and from the stone,and held in place when adjusted by the friction of the parts produced by the jointoonnection. The forward depending end portion of the water-distributer is produced in pocket form to catch the water thrown from the upper portion of the stone, and the bottom portion of the pocket, being the extreme for- The tubular column is employed as a reservoir to contain the water to be used in grinding. A float, 14, constructed with an axial tube to receive an axial supporting-shaft, 15, is placed within the tubular column, to move up and down therein on its axial support.

A crankshaft, 16, is supported to oscillate in abearing in the pedestal. A lever-arm, 17, is fixed to the inner end of the crank-shaft, and its free end engages a Washer, 18, placed 011 the upper end of the float. A crank-arm, 19, is fixed to the outer end of the crank-shaft, and a pitman, 20, connects the outer end of the crank-arm with a treadle, 21. The treadle 21 spans the tubular column, and its like arms extend to embrace the rear column, to which they are pivotally connected, to permit an up and down movement of its free forward end. The pitman 20 is adjustably connected at its lower end to the treadle, and this connection in this instance is formed by means of a crossbar, 25, fixed to the rearward-extending like bars of the treadle, and a series of holes formed in the lower end portion of the pitman permits of adjustments to vary the depression of the float.

From the foregoing it will be seen that if the free end of the treadle is depressed the float will be depressed in the tubular column and will displace the water therein contained and cause it to rise in contact with the grindstone, as represented in' the dotted lines in Fig. 2, and with the stone moving in the direction indicated by the arrow thereon will lift the water and carry it upward and deliver it into the pocket of the distributer, to be discharged through the openings in its free end onto the stone above the point of grinding contact.

The table is provided with ways 22, 011 which is supported a tool-rest, 23, made adjustable to and from the stone, and when adjusted is fixed in place on the ways by screw clampingbolts. I

The horizontal tool-rest shown at Fig. 4 is 5 designed to be employed when reqniredinstead of the tool-rest 23, (shown in place in Figs. 1 and 2,) and is capable of adjustment on the ways and to be fixed in place thereon in substantially the same manner.

The portion 24*. of the table over the tubular column is produced in disk form of open-grate work, to permit the water carried over by the grindstone and the sediment produced in grinding to pass through it into the column. This grate-formed disk is made removable to permit the insertion of the float, or for other purposes requiring its removal. The tubular column is provided near its base with an outlet opening, 25,'provided with a removable stop-, per or other suitable appliance by which the contents of the column may be drawn off.

As hereinbefore stated, the depression of the free end of the treadle will cause the water to rise in the case on the lower portion of the stone, and when the treadle is liberated the float will rise and elevate the free end of the treadle and permit the water to recede from the stone and return to the reservoir.

I claim as my invention- 1. The combination, in a grindstone-frame, of a water-reservoir, a float arranged within the reservoir, and means for operating the float, substantially as described.

2. The combination, with a reservoirsupporting frame to a grindstone, ofa float within the reservoir, a vibrating treadle, and means, substantially as shown and described, connecting the treadle with the float, as and for the purpose set forth.

3. The combination, with a reservoir-supporting frame to agrindstone, of afloat within the reservoir, a vibrating treadle, and means, substantially as described, for adjustabl y connecting the treadle with the float to vary the movement of the latter within the reservoir, substantially as set forth.

4. The combination of a reservoirsupporting frame to a grindstone, a grindstone supported to revolve within the frame, a floatsupported to move vertically within the reservoir, a treadle pivotally supported on the pedestal, and a crank-shaft, pitman, and lever-arm connecting thetreadle with the float, substantially as and for the purpose set forth.

5. The combination, with the removable cap 9, of a water-distributor, 12, jointed to the cap at one end, open at its innerside, and provided at the other end with a pocket having holes 13, substantially as described.

XVILLIAM F. BARNES.

\Vitnesses:

A. O. BEHEL, J AOOB BEHEL. 

